Industry standard API mocking for JavaScript.

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

Angular testing library for mocking components, directives, pipes, services and facilitating TestBed setup

Mocking library for TypeScript

Data modeling and relation library for testing JavaScript applications.

Typescript transformer to unlock automatic mock creation for interfaces and classes

🐦 Next generation mocking framework in Javascript

Generate MSW request handlers from various sources (HAR files, OpenAPI documents, etc).

Official website and documentation for the Mock Service Worker library.

An unofficial UI for WireMock

Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses

🎉 tool that easily and quickly imitates server operation, create full fake api in few steps

Type safe mocking library for TypeScript

Your mocking ninja - an add-on tool for centralizing your client side mocking

A powerful tool for creating and managing versatile mock API environments.

🐦 Decorator Powered TypeScript Library for Creating Mocks

Proxay is a record/replay proxy server that helps you write faster and more reliable tests.

Example project to demonstrate how to record/replay API with Cypress.

Everything to know about mocking in TypeScript.